Those are very bold claims, that require bold evidence.
Price lists and complete testing info are needed.
I did find where Rayton has signed a deal with a company that supplies proton beam equipment. My first thought was this has something to with making the cells more efficient. However, the press release goes on to say they are using this to slice up the silicon into wafers. They claim the current way with diamond saws results in massive waste of silicon. Hummm, maybe so, but I don't think chip fabs are going that way to make cheaper chips.
Next I found a set of charts that shows a breakdown of solar cell manufacturing costs across several companies. In all cases silicon is about 10% of the total cost. No way saving silicon is going to make the units 60% cheaper to produce. Also I would think that these proton cutters will use more power than current methods, so that silicon costs go down and power costs go up.
Then when you start having "exclusive" setups for investing in the company......... sniff, sniff, I smell BS.
Don't get me wrong, it would be great if just one of the two clams were true, price or efficiency. It would push numbers to where solar is the way to go for a large amount of people like myself.